Butter not as bad as you thought, study suggests

Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

Photos:American diet trends

The good news: Americans are consuming fewer calories. The bad news: Americans still have a long way to go in how they divvy up calories.

Hide Caption

1 of 6

Photos:American diet trends

Water over sugary drinks – Americans in almost every age and ethnic group have been weaning themselves off soda and fruit drinks and substituting for healthier choices like water.

Hide Caption

2 of 6

Photos:American diet trends

Not enough fruits and veggies – Increasing our intake of fruits and veggies could play a part in improving the U.S. diet. There has been only a slight uptick in consumption of these healthy foods since 2003.

Hide Caption

3 of 6

Photos:American diet trends

Trans fats decrease – Americans have made huge strides in improving their diet by eliminating trans fats -- although much of that is due to changes in the manufacturing process.

Hide Caption

4 of 6

Photos:American diet trends

No budging on fast food – Despite all the reports of fast food's ill effects on health, Americans have been only slightly scaling back their intake.

Hide Caption

5 of 6

Photos:American diet trends

Going nuts – Grain-based desserts such as cookies appear to be waning in popularity while healthier snacks like nuts are taking off.

Hide Caption

6 of 6

Story highlights

"A small amount of butter is not going to be a major problem," one expert says

There's little to no link between butter and chronic disease, a new study suggests

However, researchers warn that butter is still not exactly good for your health

In other words, it's neither terribly bad nor incredibly good for us, said Laura Pimpin, who co-authored the paper as a postdoctoral fellow at Tufts University and now is a data analyst for the UK Health Forum in London.

"We know from recent studies that the effects of dairy fats on health are not as negative as saturated fat from other sources, so we were expecting butter to have a limited risk in causing disease," she said.

The researchers collected data on butter consumption and health risks from nine previous studies that, in total, included 636,151 participants. The data were combined into a large meta-analysis, as the researchers examined exactly how butter consumption was associated with mortality, heart disease and diabetes.

Read More

They noticed that each daily serving of one tablespoon of butter in the data was associated with a 1% higher risk of death and a 4% lower risk of type 2 diabetes. (Previous research has shown a peculiar link between dairy fat and a decreased risk of diabetes.)

"We were slightly surprised by the diabetes result: Butter intake appeared to have a very moderate protective effect," Pimpin said. "However, it is important to remember that this is based on very few studies, so it may not be a reliable result, and it shows that more studies are needed on the topic."

Additionally, "no significant associations were seen" between butter consumption and heart health, according to the paper.

"People should think of the strength of all of these relationships as small, either increasing or decreasing butter intake does not appear to have a major relationship with health," Pimpin said. "Other food choices are more important."

Therefore, these new findings do not mean that butter is healthy, said Dr. Frank Hu, professor of nutrition and epidemiology at Harvard T. H. Chan School of Public Health, who was not involved in the paper.

"This is a meta-analysis of published studies, and thus the quality of the meta-analysis depends on the quality of original studies," Hu said.

"A small amount of butter is not going to be a major problem, but regular consumption -- such as using butter on bread, cooking and frying -- may substantially increase risk of heart disease because butter contains mostly saturated fat," he added. "A much better choice would be olive oil, canola oil or nut butter."

Join the conversation

See the latest news and share your comments with CNN Health on Facebook and Twitter.

One thing that most scientists agree on, Hu said, is that a healthy diet is typically rich in plant-based foods such as fruits, vegetables, whole grains, nuts and seeds, and seafood.

"It doesn't matter that you're eating it; what matters is what you're eating it in place of and what else you're eating," said Dr. Dariush Mozaffarian, dean of the Tufts Friedman School of Nutrition Science & Policy and senior author of the paper.

"Butter is neither the villain it was made out to be, nor a health food," he added. "So it's about your other food choices, not about the butter."